Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models

We study the generation of primordial magnetic fields, coherent over cosmologically interesting scales, by gravitational creation of charged scalar particles during the reheating period. We show that magnetic fields consistent with those detected by observation may be obtained if the particle mean l...

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Detalles Bibliográficos
Autores principales:	Kandus, Alejandra, Calzetta, Esteban Adolfo, Mazzitelli, Francisco Diego
Publicado:	2000
Materias:	article cosmos elementary particle gravity magnetic field mathematical analysis mathematical model quantum theory
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v472_n3-4_p287_Kandus http://hdl.handle.net/20.500.12110/paper_03702693_v472_n3-4_p287_Kandus
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_03702693_v472_n3-4_p287_Kandus
record_format	dspace
spelling	paper:paper_03702693_v472_n3-4_p287_Kandus2023-06-08T15:36:37Z Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models Kandus, Alejandra Calzetta, Esteban Adolfo Mazzitelli, Francisco Diego article cosmos elementary particle gravity magnetic field mathematical analysis mathematical model quantum theory We study the generation of primordial magnetic fields, coherent over cosmologically interesting scales, by gravitational creation of charged scalar particles during the reheating period. We show that magnetic fields consistent with those detected by observation may be obtained if the particle mean life τ(s) is in the range 10-14 s ≤ τ(s) ≤ 10-7 s. We apply this mechanism to minimal gauge-mediated supersymmetry-breaking models, in the case in which the lightest stau τ(l) is the next-to-lightest supersymmetric particle. We show that, for a large range of phenomenologically acceptable values of the supersymmetry-breaking scale √F, the generated primordial magnetic field can be strong enough to seed the galactic dynamo. (C) 2000 Elsevier Science B.V. Fil:Kandus, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Calzetta, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mazzitelli, F.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2000 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v472_n3-4_p287_Kandus http://hdl.handle.net/20.500.12110/paper_03702693_v472_n3-4_p287_Kandus
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	article cosmos elementary particle gravity magnetic field mathematical analysis mathematical model quantum theory
spellingShingle	article cosmos elementary particle gravity magnetic field mathematical analysis mathematical model quantum theory Kandus, Alejandra Calzetta, Esteban Adolfo Mazzitelli, Francisco Diego Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
topic_facet	article cosmos elementary particle gravity magnetic field mathematical analysis mathematical model quantum theory
description	We study the generation of primordial magnetic fields, coherent over cosmologically interesting scales, by gravitational creation of charged scalar particles during the reheating period. We show that magnetic fields consistent with those detected by observation may be obtained if the particle mean life τ(s) is in the range 10-14 s ≤ τ(s) ≤ 10-7 s. We apply this mechanism to minimal gauge-mediated supersymmetry-breaking models, in the case in which the lightest stau τ(l) is the next-to-lightest supersymmetric particle. We show that, for a large range of phenomenologically acceptable values of the supersymmetry-breaking scale √F, the generated primordial magnetic field can be strong enough to seed the galactic dynamo. (C) 2000 Elsevier Science B.V.
author	Kandus, Alejandra Calzetta, Esteban Adolfo Mazzitelli, Francisco Diego
author_facet	Kandus, Alejandra Calzetta, Esteban Adolfo Mazzitelli, Francisco Diego
author_sort	Kandus, Alejandra
title	Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_short	Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_full	Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_fullStr	Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_full_unstemmed	Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
title_sort	cosmological magnetic fields from gauge-mediated supersymmetry-breaking models
publishDate	2000
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v472_n3-4_p287_Kandus http://hdl.handle.net/20.500.12110/paper_03702693_v472_n3-4_p287_Kandus
work_keys_str_mv	AT kandusalejandra cosmologicalmagneticfieldsfromgaugemediatedsupersymmetrybreakingmodels AT calzettaestebanadolfo cosmologicalmagneticfieldsfromgaugemediatedsupersymmetrybreakingmodels AT mazzitellifranciscodiego cosmologicalmagneticfieldsfromgaugemediatedsupersymmetrybreakingmodels
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Cosmological magnetic fields from gauge-mediated supersymmetry-breaking models

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